Why isn’t the mic picking up the sound? – Filmic Pro－Video Camera Review

I’ve had this app for a while now and loved it so much but I just tried to use for the first time in a while and now the mic isn’t picking up any sound. I restored to default settings, didn’t work. I uninstalled and installed the app again, didn’t work. I restarted my phone, didn’t work. The audio that’s being picked up is at a level that’s basically soundless. I can barely hear. Also there’s nothing wrong with my phone because my Camera app, Snapchat, and Instagram are still recording video with great sound. I need this fixed ASAP!!!
Review by Trynnadoright on Filmic Pro－Video Camera.